“Waitress star Katharine McPhee has a tip for anyone looking to criticize her relationship with David Foster: Don’t.

“McPhee responded to haters via Twitter on Friday, July 6 — three days after she confirmed her engagement to the Grammy-winning music producer, writing that her wedding gift wish-list isn’t the registry people should be focused on.

““Y’all should be worrying more about registering to vote and midterm elections than who’s marrying me,” McPhee tweeted, adding a light-hearted joke, “Thank you for coming to my TED talk.”

“In the days since McPhee announced her engagement using an Ariana Grande GIF on July 3, the American Idol alum has been the target of social media trolling about everything from her and Foster’s 34-year age difference to her fiancé’s four previous marriages.”